As for the other one, here are my previous Hanukkah posts:
2004: Hanukkah Menorah
2005: Happy Chanukah!
2006: Rock of Ages
2007: Hanukkah Menorah
2008: Happy Hanukkah
2009: Festival of Lights and Hanukkah
You may ask, why did you spell it differently in 2004? Well, for the same reason I spelled it differently this year: because that's how it was spelled by the person who created the media I was featuring that year. A better question: why didn't I do a Hanukkah post in 2003, the first year I did an Advent project? I haven't any idea.
And speaking of alternate spellings, consider this Tweet I made when I posted a link to today's Advent Art post:
Advent Art: Silver Hanukah lamp.
Personally, I use two Ns, so: Happy
Hanukkah, everyone! http://bit.ly/f0yS9j
Yeah. Apparently I'm like that University of Nebraska football player who thought the N on his helmet stood for "knowledge."